Morrison will sing before Game 2 on Thursday night, Deschanel for Game 3 on Saturday night, and Lovato for Game 4 on Sunday night. If there is a Game 5, it will be played Monday night, and Aretha Franklin will perform.

Morrison is an Emmy-nominated actor known for his role on “Glee.” Deschanel stars in the hit TV show “New Girl.” Lovato is a pop star and judge on “The X Factor.”